| Period | Value | YoY Chg | Change % | Date |
|---|---|---|---|---|
| Q3 2024 | 12.3 | -3.5 | -22.2% | Sep 30, 2024 |
| Q2 2024 | 12.8 | -3.59 | -21.9% | Jun 30, 2024 |
| Q1 2024 | 13.8 | -3.31 | -19.3% | Mar 31, 2024 |
| Q4 2023 | 14.7 | -3.16 | -17.7% | Dec 31, 2023 |
| Q3 2023 | 15.8 | -2.58 | -14.1% | Sep 30, 2023 |
| Q2 2023 | 16.4 | -3.06 | -15.8% | Jun 30, 2023 |
| Q1 2023 | 17.2 | -3.3 | -16.1% | Mar 31, 2023 |
| Q4 2022 | 17.9 | -2.87 | -13.8% | Dec 31, 2022 |
| Q3 2022 | 18.4 | -2.93 | -13.8% | Sep 30, 2022 |
| Q2 2022 | 19.4 | -0.58 | -2.9% | Jun 30, 2022 |
| Q1 2022 | 20.5 | +1.47 | +7.75% | Mar 31, 2022 |
| Q4 2021 | 20.8 | +2.19 | +11.8% | Dec 31, 2021 |
| Q3 2021 | 21.3 | +3.22 | +17.8% | Sep 30, 2021 |
| Q2 2021 | 20 | +1.48 | +7.99% | Jun 30, 2021 |
| Q1 2021 | 19 | +0.63 | +3.43% | Mar 31, 2021 |
| Q4 2020 | 18.6 | +0.24 | +1.31% | Dec 31, 2020 |
| Q3 2020 | 18.1 | -0.02 | -0.11% | Sep 30, 2020 |
| Q2 2020 | 18.5 | +0.78 | +4.4% | Jun 30, 2020 |
| Q1 2020 | 18.4 | +0.28 | +1.55% | Mar 31, 2020 |
| Q4 2019 | 18.3 | +0.18 | +0.99% | Dec 31, 2019 |
| Q3 2019 | 18.1 | -0.14 | -0.77% | Sep 30, 2019 |
| Q2 2019 | 17.7 | -1.56 | -8.08% | Jun 30, 2019 |
| Q1 2019 | 18.1 | -1.12 | -5.84% | Mar 31, 2019 |
| Q4 2018 | 18.2 | -1.81 | -9.07% | Dec 31, 2018 |
| Q3 2018 | 18.2 | -2.35 | -11.4% | Sep 30, 2018 |
| Q2 2018 | 19.3 | -1.18 | -5.76% | Jun 30, 2018 |
| Q1 2018 | 19.2 | -1.88 | -8.93% | Mar 31, 2018 |
| Q4 2017 | 20 | -1.4 | -6.56% | Dec 31, 2017 |
| Q3 2017 | 20.6 | -1.46 | -6.63% | Sep 30, 2017 |
| Q2 2017 | 20.5 | -1.76 | -7.92% | Jun 30, 2017 |
| Q1 2017 | 21.1 | -2.16 | -9.31% | Mar 31, 2017 |
| Q4 2016 | 21.4 | -2.1 | -8.95% | Dec 31, 2016 |
| Q3 2016 | 22 | -2.1 | -8.7% | Sep 30, 2016 |
| Q2 2016 | 22.2 | -3.47 | -13.5% | Jun 30, 2016 |
| Q1 2016 | 23.2 | -3.13 | -11.9% | Mar 31, 2016 |
| Q4 2015 | 23.5 | -3.44 | -12.8% | Dec 31, 2015 |
| Q3 2015 | 24.1 | -3.83 | -13.7% | Sep 30, 2015 |
| Q2 2015 | 25.7 | -1.21 | -4.5% | Jun 30, 2015 |
| Q1 2015 | 26.3 | +0.27 | +1.04% | Mar 31, 2015 |
| Q4 2014 | 26.9 | +0.87 | +3.34% | Dec 31, 2014 |
| Q3 2014 | 28 | +2.05 | +7.91% | Sep 30, 2014 |
| Q2 2014 | 26.9 | +0.24 | +0.9% | Jun 30, 2014 |
| Q1 2014 | 26.1 | -0.25 | -0.95% | Mar 31, 2014 |
| Q4 2013 | 26 | -1.17 | -4.3% | Dec 31, 2013 |
| Q3 2013 | 25.9 | -0.4 | -1.52% | Sep 30, 2013 |
| Q2 2013 | 26.7 | +0.24 | +0.91% | Jun 30, 2013 |
| Q1 2013 | 26.3 | -1.83 | -6.5% | Mar 31, 2013 |
| Q4 2012 | 27.2 | Dec 31, 2012 | ||
| Q3 2012 | 26.3 | Sep 30, 2012 | ||
| Q2 2012 | 26.4 | Jun 30, 2012 | ||
| Q1 2012 | 28.2 | Mar 31, 2012 |